The ACPL-W70L is a high-CMR, high-speed optocoupler from Avago Technologies (now Broadcom). It's designed for isolation in high-voltage and noisy environments, commonly found in industrial and automotive applications. This optocoupler features a high common-mode transient immunity (CMTI) and high speed, making it ideal for isolating digital signals.

Applications

• Isolated CANBus interfaces
• Isolated SPI interfaces
• Motor control
• Inverter control
• Data communication
• Digital isolation in industrial equipment

Features

• High common-mode transient immunity (CMTI): 10 kV/μs minimum
• High speed: 1 Mbps data rate
• Wide supply voltage range: 3 V to 5.5 V
• Open-collector output
• Safety approvals: UL, CSA, IEC/EN/DIN EN 60747-5-5
• Compact SO-8 package

Benefits

• Robust isolation: High CMTI provides reliable data transfer in noisy environments.
• High-speed communication: Fast data rates support demanding digital interfaces.
• Versatile power supply: Wide voltage range simplifies integration into different systems.
• Safety compliance: Certifications ensure safe operation in regulated applications.
• Compact design: Small package size saves board space.

Additional Details

The ACPL-W70L utilizes an LED and an integrated high-gain photodetector to provide electrical isolation between the input and output. The open-collector output allows for flexible interface with various logic levels. It's available in an 8-pin small outline (SO-8) package. The operating temperature range is typically -40°C to +105°C, depending on the specific part number variant. The isolation voltage is rated at 5 kVrms for 1 minute according to UL 1577. The device is particularly well-suited for applications where safety and reliability are critical.